﻿/*
Copyright 2011 Google Inc

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

using System.Linq;
using System.Text.RegularExpressions;

namespace UpdateWikiLists.Wiki
{
    /// <summary>
    /// Utils for the Google Wiki
    /// </summary>
    public static class WikiUtils
    {
        private static readonly Regex WikiLink = new Regex("([A-Z][a-z]+){2,}", RegexOptions.Compiled);

        /// <summary>
        /// Escapes all WikiLinks in the specified text.
        /// </summary>
        public static string WithoutWikiLinks(this string str)
        {
            return str
                    .Split(' ')
                    .Select(word => WikiLink.IsMatch(word) ? ("!" + word) : (word))
                    .Aggregate((a, b) => a + " " + b);
        }
    }
}
